Mathematics High School
Answers
Answer 1
0,3 point because the 0 is the only number on the actual yaxis out of all of these
Related Questions
Please help IXL due at midnight!
Answers
When the inequality expression 1 > b  5 is evaluated, the value of the expression is 4 < b < 6
What are inequality expressions?
Inequality expressions are mathematical statements that are represented by variables, coefficients and operators where the opposite sides are not equal
How to determine the solution to the inequality?
The absolute value inequality is given as
1 > b  5
Remove the absolute value inequality symbol
So, we have the following expression
1 < b  5 < 1
Add 5 to all sides of the inequality expression
So, we have the following expression
5 1 < b  5 + 5 < 1 + 5
Evaluate the sum and the difference in the above inequality expression
So, we have the following expression
4 < b < 6
Hence, the solution to the inequality expression 1 > b  5 is 4 < b < 6
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he function y=f(x)y=f(x) is graphed below. What is the average rate of change of the function f(x)f(x) on the interval −1≤x≤0?
Answers
The estimate of the average rate of change f is 2
How to estimate the average rate of change f?
The possible graph that completes the question is added as an attachment
The interval is given as
1 ≤ x ≤ 0
This can be rewritten as
x = 1 to x = 0
This can also be represented as
(a, b) = (1, 0)
From the attached graph, we have
f(1) = 7
f(0) = 5
The estimate (to one decimal place) of the average rate of change f is
Rate = [f(b)  f(a)]/[b  a]
This gives
Rate = [f(1)  f(0)]/[1  0]
So, we have
Rate = [7  5]/[1  0]
Evaluate
Rate = 2
Hence, the average rate of change f is 22
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Which method describes an observational study? Method 1 is an observational study because past data are collected and analyzed. Method 2 is an observational study because two city schools are chosen to participate. Method 2 is an observational study because students can choose to participate in the music lessons. Both methods are observational studies because both include students who do and do not play a musical instrument.
Answers
Both methods are observational studies because both include students who do and do not play a musical instrument. So, this method describes an observational study.
Several various kinds of nonexperimental studies in which behavior is routinely observed and documented are together referred to as observational research. A variable or combination of variables must be described in order to be the focus of observational research.
In a broader sense, the objective is to capture a moment in time of certain traits of a person, group, or environment. We cannot draw causal inferences from observational research since nothing is altered or controlled, as previously said, making it nonexperimental. Although they may also be quantitative or both, the data that are gathered in observational research investigations are frequently qualitative in nature (mixedmethods).
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Answer:
IF ITS THIS QUESTION
An article in a psychology journal claims that young students who play a musical instrument tend to have higher test scores on state math exams. To assess the claim, a government official considers two methods to collect data.
Method 1: Contact many city schools and ask them to provide summary data on state math exam performance and students who participate in music lessons.
Method 2: Choose two city schools and provide free music lessons to students who register. At the end of the year, compare state math exam scores for students who participated in the music lessons with the scores for those who did not.
Stepbystep explanation:
THE AWNSER IS C
Method 2 is an observational study because students can choose to participate in the music lessons.
An observational study is a type of research in which researchers observe and record the behavior of a group of individuals, but do not manipulate or intervene in any way. In this case, Method 2 describes an observational study because the researchers are not manipulating the students' participation in music lessons. Instead, the students are free to choose whether or not to participate in the music lessons, and the researchers simply observe and record the state math exam scores for both groups of students. In contrast, Method 1 is not an observational study because it involves collecting summary data on state math exam performance and music lesson participation, rather than observing and recording the behavior of the students.
A quadrilateral is plotted on a coordinate plane. Each of the vertices of the quadrilateral undergoes the same transformation.Which transformation does not preserve the lengths of the sides of the quadrilateral?
Answers
Answer:Option B
Explanations :
(a) (x;y) →(x3 ; y+2 ) ; this preserves the lengths of the side, with a reflection across the x axis .
(b) (x;y) →(2x +1 ; y5 ); this does not preserve the length of sides, because the 2 multiply by x will change the length by factor of 2 .
(c) (x;y) → (x+6 ;y 8 ), preserves the lengths of sides, with reflection of y = x .
(d) (x;y) →(x 5 ; y+10 ) preserves the lenghts of the sides , with a reflection in the y axis .
Evaluate the expression. 12−{1+2[−1(3−8)]2} What is the value of the expression? Enter your answer in the box.
Answers
If the given mathematical expression 12−{1+2[−1(3−8)]2} is been evaluated , then it will become 18.
How can the expression be simplified?
The mathematical expression can be simplified by first simplify the expression in the inner bracket one after the other.
The given mathematical expression is 12−{1+2[−1(3−8)]2}
then we can simplify one after the order by following the bracket one after the other, as :
12−{1+2[−1(3−8)]2}
12  {1+2[1(5)]2}
Then we can further simplify the expression as :
12  {3 [ 5 ] 2}
Then this can be further simplified as :
12  {30}
This can be further simplified as :
18
Therefore, the value of the expression given is 18
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The price of a math textbook can be modeled by the equation:
y = 2x + 76, where x is time in years and y is the price of
the textbook. This equation tells us that the textbook originally
cost $76 and each year the cost went up $2. How many years
will it take for the textbook to cost $100?
Answers
It should take 12 years
What is the scientific notation of 500,000,000,000
Answers
Answer:
The scientific notation for 500000000000 is 5 × 1011
Stepbystep explanation:
The 11 is going to be a superscripts(meaning its going to be placed at the top right corner of the 10)
Use the following function rule to find g(p). Simplify your answer.
g(x) = 9W + 4
g(p) =
Answers
g(w)= 9w+4 (use p instead of w )
g(p)= 9(p)+4
g(p)= 9p+4
Which boxandwhisker plot represents this data: 6, 7, 9, 9, 20, 22, 26, 28, 29, 30?
Answers
The Last boxandwhisker plot represents the data 6, 7, 9, 9, 20, 22, 26, 28, 29, 30.
What is the boxandwhisker plot?A box and whisker plot is a visual representation of variance in a set of data. The majority of the time, a histogram analysis gives an adequate display, but a box and whisker plot can add more detail while enabling the display of various sets of data on the same graph.It divides the data into five numerical categories: minimum, first quartile (Q1), median, third quartile (Q3), and "maximum." You can learn more about your outliers' values from it.The boxandwhisker plot and the boxandwhisker diagram are other names for a box plot that also includes lines (referred to as whiskers) extending from the box to indicate variability outside the top and lower quartiles.
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help me with the pirates
Answers
For Roberts the equation is:
[tex]5yx=25[/tex]
to we can write it as slope intercept so:
[tex]\begin{gathered} 5y=x25 \\ y=\frac{1}{5}x5 \end{gathered}[/tex]
Now we replace x = 5 so
[tex]\begin{gathered} y=\frac{5}{5}5 \\ y=15 \\ y=4 \end{gathered}[/tex]
So the two points are ( 0 , 5) and ( 5 , 4)
Fo Hookthe equation is:
[tex]2x5y=0[/tex]
In slope intercept is:
[tex]\begin{gathered} 5y=2x \\ y=\frac{2}{5}x \end{gathered}[/tex]
so we replace x = 5 so:
[tex]y=2[/tex]
So the two points are: ( 0 , 0) and ( 5 , 2 )
For Elizabeth the equation is:
[tex]y6=\frac{1}{2}(x2)[/tex]
and slope intercept:
[tex]\begin{gathered} y=\frac{1}{2}x1+6 \\ y=\frac{1}{2}x+5 \end{gathered}[/tex]
now we replace x = 2 so:
[tex]\begin{gathered} y=1+5 \\ y=6 \end{gathered}[/tex]
So the coordinates are ( 0 , 5) and ( 2, 6 )
And for Silver the equation is:
[tex]4xy+6=9[/tex]
In slope intercept is:
[tex]\begin{gathered} y=4x+69 \\ y=4x3 \end{gathered}[/tex]
now we replace x = 1 so:
[tex]\begin{gathered} y=43 \\ y=1 \end{gathered}[/tex]
So the coordinates are: ( 0, 3) and ( 1, 1 )
So now you can made the graph of the lines and find the message.
please help me.
There is the screenshot down below.
Answers
Answer:
file has been attached
Stepbystep explanation:
Answer:
x = 42°
Stepbystep explanation:
straight line angles:
m∠AOB = 180° {AB is a straight line}
m∠AOE + m∠EOF + m∠FOB = ∠AOB
x + 2x + 34 + 20 = 180°
Combine like terms,
3x + 54 = 180
subtract 54 from both sides,
3x = 180  54
3x = 126
Divide both sides by 3
x = 126 ÷ 3
x = 42°
Determine if 0.68
0.68 is rational or irrational and give a reason for your answer.
choices for explanation
it is a decimal that repeats
it is the square root of a non perfect square
it is the square root of a perfect square
it is a decimal that does not repeat or terminate
it is a decimal that terminates
(urgent pls help)
Answers
0.68 is a rational number and the reason is because:
It is a decimal that terminates
Why is 0.68 a rational number?
0.68 can be regarded as a rational number because it is a finite number that is also a fraction of two whole integers. In this case, the integers are 68 and 10. Another feature by which rational numbers are known is the fact that they are repeating in nature.
However, it is important to note that the decimal here is terminating in nature because it has a finite number of zeros behind the number 8. So, the reason for selecting 0.68 as a rational number is that it terminates.
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Use digits and symbols to write ''The product of one and two is less than the sum of one and two''
Answers
Answer:
1 + 3 < 1 · 2
Stepbystep explanation:
Given that x: y = 10:9 and x  y = 122, find the value of x + y.
Answers
Answer:
2318
Stepbystep explanation:
[tex] \frac{x}{y} = \frac{10}{9} [/tex][tex]x = \frac{10y}{9} [/tex][tex] \frac{10y}{9}  y = 122[/tex][tex] \frac{10y  9y}{9} = 122[/tex][tex] \frac{y}{9} = 122[/tex][tex]y = 9 \times 122 = 1098[/tex][tex]x  y = 122 \\ y = 1098 \\ x = 122 + 1098 = 1220[/tex][tex]x + y = 1220 + 1098 = 2318 \\ x + y = 2318[/tex]
Denver,Colorado often experiences snowstorms resulting in multiple inches of accumulated snow. During the last snow storm, the snow accumulated at 4/5 inch/hour. If the snow continues at this rate for 10 hours, how much snow will accumulate?
Answers
Answer:8
Stepbystep explanation:if it is 4/5 per hour then you mulitply 4/5 x 10
and 4/5=.8
.8 x 10=8
Segment addition and midpoints
In the figure below, B is between A and C, and C Is between B and D. If AC=8, BC=5, and BD=9, find AD.
Answers
The line segment AD is 12 units.
How to find the segment AD using midpoint?
The midpoint is the middle point of a line segment.
It is equidistant from both endpoints, and it is the centroid both of the segment and of the endpoints.
The midpoint is halfway between the two end points:
Therefore, B is between A and C.
C is between B and D.
Hence,
AC = 8
BC = 5
BD = 9
AD = ?
Therefore,
AD = AB + BC + CD
AB = AC  BC
AB = 8  5
AB = 3 units
CD = BD  BC
CD = 9  5
CD = 4 units
Therefore,
AD = 3 + 5 + 4
AD = 12 units
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Identify the function that fits the description given below.
The function whose domain consists of all nonnegative real numbers.
Select all that apply.
Answers
The function which contains nonnegative real number is y = (x  1)² and the domain is [0, ∝).
What is real number?
In mathematics, real number are those numbers which contain negative numbers, whole numbers as well as natural numbers. And all the positive real number lies in the first quadrant in the graph. The set of real numbers (denoted by R) includes both rational numbers (positive, negative and zero) and irrational numbers.
According to the question, the given functions whose domain consists of all nonnegative real numbers.
Nonnegative real numbers lie in the first quadrant. Therefore, the function(d) contains all nonnegative real numbers.
Given function: y = (x  1)²
The domain for this function is: [0, ∝)
Hence, the function which contains nonnegative real number is y=(x  1)² and the domain is [0, ∝).
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a pizza shop delivered 8 pepperoni pizzas to a college on the first night of final exams. the total cost of the pizzas was $56. a small pizza costs $3 and contains 4 ounces of pepperoni. a medium pizza costs $5 and contains 9 ounces of pepperoni. a large pizza cost $11 and contains 12 ounces of pepperoni. the owner of the pizza shop used 4 pounds 12 ounces of pepperoni in making the pizzas. how many pizzas of each size were delivered to the college?
Answers
From the word problem given, the number of pizzas each that were delivered are:
1 small7 medium; and2 large.
What is the calculation justifying the above solution?
Step I
Let a = number of small pizzas delivered
Let b = number of medium pizzas delivered
Let c = number of large pizzas delivered
Step 2  Creating relevant expressions based on number and type ordered, we have:
a + b + c = 8.............................1
3a + 5b + 11c = 56..................2
4a + 9b + 12C = 4 * 8 + 12.....3a
We can rewrite (3) as
4a + 9b + 12C = 44 ....3b
Step 3
Multiply both sides of (1) by 4
We have
4a +4b +4c = 32
If we remove (1) from (3) we have
4a + 9b + 12C = 44

4a +4b +4c = 32
5b +8C = 12......................(4)
Multiply both sides of (1) by 3 and subtract from (2), and we have:
3a + 3b + 3c = 24, removing this from (2) we have
3a + 5b + 11c = 56

3a + 3b + 3c = 24
2b + 8c = 32.....................(5)
Step 4  Subtract (4) from (5)
2b + 8c = 32

5b + 8c = 12
3b = 20
b =  20/3
=  6.67
Since we cannot have negative values, we work with absolute value to get:
b [tex]\approx[/tex] 7
Since b = 7
2(7) + 8c = 32
8c = 32  14
c = 18/8
c [tex]\approx[/tex] 2
Plug in that back into a we have
a + b + c = 8
a + 7 + 2 = 8
a = 89
a = 1 (recall we must have absolute values)
a therefore = 1.
Hence the number of pizzas that were ordered are:
1 small
7 medium; and
2 large.
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Arranging
A. Arrange the set of integers in increasing order.
1. 3,4, 1, 10, 9,3
2. 4,12, 12, 5, 9, 0, 1
3. 6, 63, 45, 7, 50
4. 6,10, 4, 1, 67, 1
5. 5, 7, 13,34, 52, 25, 0
Answers
In ascending order the integers are arranged from the left to right of the integer line. The arrangements are shown below.
The arrangement of the set of integers in increasing order is as follows:
4<3<1<3<9<10 12<5<1<0<4<9<12 50<45<7<6<63 67<10<1<1<4<6 52<34<5<0<7<13<25
Every positive integer is greater than a negative integer. Zero is less than every positive integer. Zero is greater than every negative integer. The greater the number, the lesser its opposite,i.e., If a and b are two integers such that a>b, then a<b.
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Sonya wants to sew ribbon along each side of a square pillow. The expression 4 ⋅ 144−−−√ gives the exact amount of ribbon she will need for a pillow with an area of 144 square inches. How much ribbon, in inches, must Sonya buy to have the exact amount?
Answers
She buy 48 inches of ribbon to have the exact amount that she needs.
Given,
Area of the ribbon = 144 sq. inches
and, We know the formula for side of square is =[tex]\sqrt{Area of a square }[/tex]
Plug the value of area of square in above formula
Side of a Square = [tex]\sqrt{144}[/tex] = 12 inches
Now, we get the side of a square i.e., 12 inches
According to the question:
Sonya wants to sew ribbon along each side of a square pillow.
So, we need to find the perimeter of the square pillow.
and, Perimeter of a square is = 4 x side
=> Perimeter = 4 x 12 = 48 inches.
Therefore, She buy 48 inches of ribbon to have the exact amount that she needs.
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After a 65% reduction, you purchase a new washing machine on sale for $224. What was the original price of the washing machine?
The original price was ___$
Answers
Answer:
$369.60
Stepbystep explanation:
65% = 0.65
1.00 + 0.65 = 1.65
$224 * 1.65 = $369.60
the original price was $369.60
Answer:
The original price was 640
Stepbystep explanation:
Let the price be x
100%65%=35%
35%/100%*x=224
35x=22400
x=640
What is the equation of the line that passes through the point (1, 5) and
has a slope of 3?
Answers
Answer:
Equation of line is given as y = mx + c, where m is the slope and c is the yintercept.
Since slope is 3, equation is y = 3x + c.
Substitute point (1,5) into equation to find c.
5 = 3(1) + c
c = 2
Hence, equation of line is y = 3x + 2
1) If g(x) is a linear function, g(2) = 6 and g(2) = 18, what is the rate of change? Is this function increasing or decreasing? Show your work!
Answers
Answers:
Rate of change = 3
The function is increasing
===================================================
Explanation:
The notation g(2) = 6 means the input x = 2 leads to the output y = 6. Therefore, the point (2,6) is on f(x). The other point given is (2,18).
For linear functions, the terms "rate of change" and "slope" are the same thing.
Let's use the slope formula on the two points (2,6) and (2,18)
[tex](x_1,y_1) = (2,6) \text{ and } (x_2,y_2) = (2,18)\\\\m = \frac{y_{2}  y_{1}}{x_{2}  x_{1}}\\\\m = \frac{18  6}{2  (2)}\\\\m = \frac{18  6}{2 + 2}\\\\m = \frac{12}{4}\\\\m = 3\\\\[/tex]
The slope is 3, which can be written as 3/1
A slope of 3/1 means we go up 3 and to the right 1.
slope = rise/run = 3/1
rise = 3 = go up 3
run = 1 = go to the right 1
Since the slope is positive, this means the line is going uphill as we move to the right. In other words, the function is increasing.
if the die were loaded so that the face with the 3 on it were twice as likely to come up as each of the other five faces, would this change the value of p(odd number)? explain.
Answers
if the die were loaded so that the face with the 3 on it were twice as likely to come up as each of the other five faces, No , it does not change the value of p(odd number) .
a) The sample space is the set of all possible outcomes. By definition, the elements of a set should not be repeated. Hence, the sample space S = {1, 2, 3}
However, the sample is not equiprobable because each element has different probabilities.
b) P(odd number) = number of odd digits / number of faces = 4/6=2/3
Note that the odd numbers are 1 (on three faces) and 3 (on one face).
c) The fact the die has been biased does not change the possible outcomes. It only changes the probability of getting any given number.
d) Because the 3face has been loaded, this probability changes. In fact, it is calculated thus:
Let's assume the probability for 1 or 2 is . Then that of 3 is (because it is twice the others). The sum of probabilities must be 1.
x+x+x+x+x+2x=1
7x=1
x=1/7
P(odd number) = 3 * Prob(1) + Prob(3)
=3*1/7 +2/7 = 5/7
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please help, question is on the image.
Answers
The number of gigabytes Salma can use while staying in her budget is less than 4.
What is meant by the term inequality?
In mathematics, an inequality is a connection between two expressions and values that aren't equal to each other.
Rule 1: Once inequalities are linked, they can be crossed. As a result, if an is greater than b and b is higher than c, a will be greater than c as well.Rule 2: When you swap the values, this same sign also flips.Rule 3: An inequality could be either > or, but not both at the same time.
As per the given question;
The total budget of Salma is $75.
The flat cost is $55.
The cost per gigabytes is $5.
Let the number of gigabytes used be 'x'.
Then, the inequality becomes.
55 + 5x < 75
Subtracting 55 from both sides.
55 + 5x  55 < 75  55
5x < 20
Divide both sides by the 5
x < 4
Thus, the number of gigabytes Salma can use while staying in her budget is less than 4.
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Which of the following lists of ordered pairs is a function?
A.) (1, 2), (1, –2), (3, 2), (3, 4)
B.) (0, 2), (2, 3), (0, –2), (4, 1)
C.) (1, 6), (2, 7), (4, 9), (0, 5)
D.) (2, 4), (0, 2), (2, –4), (5, 3)
Answers
Answer: d
Stepbystep explanation:
im new at this but i am pretty sure it would be d
a function is graphed below. on which interval of c is the average rate of change of the function the greatest?
1. x=0 to x=2
2. x=12 to x=18
3. x=2 to x=12
4. x=18 to x=24
Answers
The correct answer is goin to be number 4
brian sells wholesome computer parts at a comission rate of 4% .what is his income last month if his total sales were 82,968.00
Answers
Brian's income last month t is $3,318.92
How to calculate the income ?
The commission rate for the computer parts is 4%
The total sales for last month is 82,968.00
Brian income last month can be calculated as follows
Total sales × commission percentage
4/100 × 82,968
= 0.04 × 82,968
= 3,318.92
Hence Brian income for last month is $3,318.92
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Bronze is an alloy made of copper and tin. the ratio of copper to tin is 23 to 2, if a bronze statue weighs 50kg what is the mass of copper in the statue
STEP BY STEP AND URGENT
Answers
Answer:46kg
Stepbystep explanation:
23+2=25
50/25=2
2x23=46kg
Answer:
46 kg
Stepbystep explanation:
Ratio of copper to tin in the bronze alloy is 23:2
That means, as a ratio of the entire brass mass, the copper content is in the ratio of 23/(23 + 2) = 23/25
Since the mass of the bronze statue is 50 kg, the mass of copper in it must be 50 x 23/25 = 46 kg
The remaining kg (2/25 of 50 kg) is tin
Suppose 38% of students chose to study German their senior year, and that meant that there were 190 such students. How many students chose not to take German their senior year?
Answers
Answer: 310
Stepbystep explanation:
(190/38) x 100 = 500 total students
500190 = 310 students